Download rangkaian listrik 2

RANGKAIAN LISTRIK 2
SELASA, DH 102, 10.10-12.40 WITA
Ir. I.A.DWI GIRIANTARI,MEngSc.,PhD.
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SINUSOIDAL STEADY STATE
SINGLE &THREE PHASE CIRCUIT
STAR-DELTA CONNECTION
FREKWENSI COMPLEX
LAPLACE TRANSFER FUNCTION
TRANSFORMER
TWO PORT NETWORK
KONTRAK KULIAH
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MIDDLE TEST/UTS
ASSIGMENT
/TUGAS
PARTICIPATIONS
FINAL EXAM/UAS
TOTAL
= 35%
= 15%
= 10%
= 40%
= 100%
INTRODUCTORY ALTERNATING CURRENT
PEMBANGKITAN TEGANGAN AC
TWO EXPRESSION
vector representation
Vm = MAKSIMUM VOLTAGE
Vrms= V = Vm/√2
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V y 
T
2
T
2
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
y
(
t
)
dt

0
y(t) is a periodic function of time t, with period T
AN IDEAL RESISTOR IN AC CIRCUIT
E= Ri
i = E/R = (Vm/R) sin ωt = Imsin ωt
atau
I = E/R
POWER IN RESISTOR
The instantaneous power dissipated
P  v.i
P  (Vm sin t )( I m sin t )
Vm I m R( I m) 2
Pav 

2
2
Vm I m Vm I m
P

cos 2t
2
2
1
Pav 
(Vm sin t )( I m sin t )dt
T
T

0
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v  Vm cost   v   i 
i  I m cos t
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P is called the average power
Q is called the reactive power
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POWER FOR PURELY INDUCTIVE CIRCUITS
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POWER FOR PURELY CAPACITIVE CIRCUITS
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THE POWER FACTOR
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above
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We now calculate P and Q directly
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THE RMS VALUE AND POWER
CALCULATIONS
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EXAMPLE
SOLUTION
The average power delivered to
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EXAMPLE
a). Calculate the complex power of the load.
b). Calculate the impedance of the load.
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and
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